Alterações na distribuição 3.23.56 (13 Mar 2003)

Fixed mysqld crash on extremely small values of sort_buffer variable.

• Fixed a bug in privilege system for GRANT UPDATE on column level.
• Fixed a rare bug when using a date in HAVING with GROUP BY.
• Fixed checking of random part of WHERE clause. (Bug#142)
• Fixed MariaDB (and myisamchk) crash on artificially corrupted .MYI files.
• Security enhancement: mysqld no longer reads options from world-writeable config files.
• Security enhancement: mysqld and safe_mysqld now only use the first --user option specified on the command line. (Normally this comes from /etc/my.cnf)
• Security enhancement: Don't allow BACKUP TABLE to overwrite existing files.
• Fixed unlikely deadlock bug when one thread did a LOCK TABLE and another thread did a DROP TABLE. In this case one could do a KILL on one of the threads to resolve the deadlock.
• LOAD DATA INFILE was not replicated by slave if replicate_*_table was set on the slave.
• Fixed a bug in handling CHAR(0) columns that could cause incorrect results from the query.
• Fixed a bug in SHOW VARIABLES on 64-bit platforms. The bug was caused by incorrect declaration of variable server_id.
• The Comment column in SHOW TABLE STATUS now reports that it can contain NULL values (which is the case for a crashed .frm file).
• Fixed the rpl_rotate_logs test to not fail on certain platforms (e.g. Mac OS X) due to a too long file name (changed slave-master-info.opt to .slave-mi).
• Fixed a problem with BLOB NOT NULL columns used with IS NULL.
• Fixed bug in MAX() optimization in MERGE tables.
• Better RAND() initialisation for new connections.
• Fixed bug with connect timeout. This bug was manifested on OS's with poll() system call, which resulted in timeout the value specified as it was executed in both select() and poll().
• Fixed bug in SELECT * FROM table WHERE datetime1 IS NULL OR datetime2 IS NULL.
• Fixed bug in using aggregate functions as argument for INTERVAL, CASE, FIELD, CONCAT_WS, ELT and MAKE_SET functions.
• When running with --lower-case-table-names (default on Windows) and you had tables or databases with mixed case on disk, then executing SHOW TABLE STATUS followed with DROP DATABASE or DROP TABLE could fail with Errcode 13.
• Fixed bug in logging to binary log (which affects replication) a query that inserts a NULL in an auto_increment field and also uses LAST_INSERT_ID().
• Fixed bug in mysqladmin --relative.
• On some 64 bit systems, show status reported a strange number for Open_files and Open_streams.

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